Molecular insights into the plasma membrane intrinsic proteins roles for abiotic stress and metalloids tolerance and transport in plants

2018 ◽  
Vol 23 (4) ◽  
pp. 721-730 ◽  
Author(s):  
Kundan Kumar ◽  
Kareem A. Mosa ◽  
Ahmed G. Meselhy ◽  
Om Parkash Dhankher
2019 ◽  
Vol 6 (04) ◽  
Author(s):  
JESHIMA KHAN YASIN ◽  
ANIL KUMAR SINGH

Cytoplasmic streaming is one among the vital activities of the living cells. In plants cytolplasmic streaming could clearly be seen in hypocotyls of growing seedlings. To observe cytoplsmic streaming and its correlated intracellular trafficking an investigation was conducted in legumes in comparison with GFP-AtRab75 and 35S::GFP:δTIP tonoplast fusion protein expressing arabidopsis lines. These seedlings were observed under confocal microscopy with different buffer incubation treatments and under different stress conditions. GFP expressing 35S::GFP:δTIP tonoplast lines were looking similar to the control lines and differ under stress conditions. Movement of cytoplasmic invaginations within the tonoplast and cytoplasmic sub vesicle or bulb budding during cytoplasmic streaming was observed in hypocotyls of At-GFP tonoplast plants. We found the cytoplasmic bulbs/ vesicles or sub vesicle formation from the plasma membrane. The streaming speed also depends on the incubation medium in which the specimen was incubated, indicating that the external stimuli as well as internal stimuli can alter the speed of streaming


2021 ◽  
Author(s):  
Noemi Ruiz-Lopez ◽  
Jessica Pérez-Sancho ◽  
Alicia Esteban del Valle ◽  
Richard P Haslam ◽  
Steffen Vanneste ◽  
...  

Abstract Endoplasmic reticulum-plasma membrane contact sites (ER-PM CS) play fundamental roles in all eukaryotic cells. Arabidopsis thaliana mutants lacking the ER-PM protein tether synaptotagmin1 (SYT1) exhibit decreased plasma membrane (PM) integrity under multiple abiotic stresses such as freezing, high salt, osmotic stress and mechanical damage. Here, we show that, together with SYT1, the stress-induced SYT3 is an ER-PM tether that also functions in maintaining PM integrity. The ER-PM CS localization of SYT1 and SYT3 is dependent on PM phosphatidylinositol-4-phosphate and is regulated by abiotic stress. Lipidomic analysis revealed that cold stress increased the accumulation of diacylglycerol at the PM in a syt1/3 double mutant relative to wild type while the levels of most glycerolipid species remain unchanged. Additionally, the SYT1-green fluorescent protein (GFP) fusion preferentially binds diacylglycerol in vivo with little affinity for polar glycerolipids. Our work uncovers a SYT-dependent mechanism of stress adaptation counteracting the detrimental accumulation of diacylglycerol at the PM produced during episodes of abiotic stress.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ren Li ◽  
Jinfang Wang ◽  
Shuangtao Li ◽  
Lei Zhang ◽  
Chuandong Qi ◽  
...  

Cell Research ◽  
2006 ◽  
Vol 16 (6) ◽  
pp. 599-608 ◽  
Author(s):  
Xin Yu ◽  
Yan Hui Peng ◽  
Min Hua Zhang ◽  
Yan Jun Shao ◽  
Wei Ai Su ◽  
...  

Author(s):  
Noemi Ruiz-Lopez ◽  
Jessica Pérez-Sancho ◽  
Alicia Esteban del Valle ◽  
Richard P. Haslam ◽  
Steffen Vanneste ◽  
...  

SUMMARYEndoplasmic Reticulum-Plasma Membrane contact sites (ER-PM CS) play fundamental roles in all eukaryotic cells. Arabidopsis mutants lacking the ER-PM protein tether synaptotagmin1 (SYT1) exhibit decreased plasma membrane (PM) integrity under multiple abiotic stresses such as freezing, high salt, osmotic stress and mechanical damage. Here, we show that, together with SYT1, the stress-induced SYT3 is an ER-PM tether that also functions in maintaining PM integrity. The ER-PM CS localization of SYT1 and SYT3 is dependent on PM phosphatidylinositol-4-phosphate and is regulated by abiotic stress. Lipidomic analysis revealed that cold stress increased the accumulation of diacylglycerol at the PM in a syt1/3 double mutant relative to WT while the levels of most glycerolipid species remain unchanged. Additionally, SYT1-GFP preferentially binds diacylglycerol in vivo with little affinity for polar glycerolipids. Our work uncovers a crucial SYT-dependent mechanism of stress adaptation counteracting the detrimental accumulation of diacylglycerol at the PM produced during episodes of abiotic stress.


2009 ◽  
Vol 53 (3) ◽  
pp. 461-467 ◽  
Author(s):  
C.-W. Cho ◽  
E. Chung ◽  
K. Kim ◽  
H.-A. Soh ◽  
Y. K. Jeong ◽  
...  

2010 ◽  
Vol 285 (53) ◽  
pp. 41982-41992 ◽  
Author(s):  
Minhua Zhang ◽  
Shouqin Lü ◽  
Guowei Li ◽  
Zhilei Mao ◽  
Xin Yu ◽  
...  

1995 ◽  
Vol 108 (1) ◽  
pp. 387-392 ◽  
Author(s):  
X. Qi ◽  
C. Y. Tai ◽  
B. P. Wasserman

2020 ◽  
Author(s):  
Anna Maria Jozefowicz ◽  
Manuela Desiree Bienert ◽  
Adriana Garibay ◽  
Ricardo Giehl ◽  
Andrea Matros ◽  
...  

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